Finding the Fourth Proportional to 809,352.80, 1,214,029.20 and 388,527.20
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Solution
The fourth proportional to 809,352.80, 1,214,029.20 and 388,527.20 is: 582,790.80
Step by Step Solution
- Step 1: Write the proportion equation
809,352.80 : 1,214,029.20 = 388,527.20 : x - Step 2: Convert to fraction form
809,352.80/1,214,029.20 = 388,527.20/x - Step 3: Cross multiply
809,352.80x = 1,214,029.20 × 388,527.20 - Step 4: Simplify right side
809,352.80x = 471,683,365,794.24 - Step 5: Solve for x
x = 471,683,365,794.24/809,352.80 - Step 6: Final answer
x = 582,790.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.